<template>
    <el-row class="home" :gutter="20">
        <el-col :span="8" style="margin-top: 20px;">
            <el-card shadow="hover">
                <div class="user">
                    <img :src="getImageUrl('user')" class="user"/>
                    <div class="user-info">
                        <p class="user-info-admin">Admin</p>
                        <p class="user-info-p">超级管理员</p>
                    </div>
                </div>
                <div class="login-info">
                    <p>上次登录时间：<span>2025-03-25</span></p>
                    <p>上次登录地点：<span>成都</span></p>
                </div>
            </el-card>

            <el-card shadow="hover" class="user-table">
                <el-table :data="tableData">
                    <el-table-column
                        v-for="(val, key) in tableLabel"
                        :key="key"
                        :prop="key"
                        :label="val"
                    >
                    </el-table-column>
                </el-table>
            </el-card>
        </el-col>
        <el-col :span="16" style="margin-top: 20px;">
            <div class="num">
                <el-card
                    :body-style="{display: 'flex', padding:0}"
                    v-for="item in countData"
                    :key="item.name"
                >
                    <component :is="item.icon" class="icons" :style="{background: item.color}"></component>
                    <div class="detail">
                        <p class="num">￥{{ item.value }}</p>
                        <p class="txt">￥{{ item.name }}</p>
                    </div>
                </el-card>
            </div> 

            <el-card class="top-echart">
                <div ref="echart" style="height: 280px;"></div>
            </el-card>

            <div class="graph">
                <el-card>
                    <div ref="userEchart" style="height: 240px;"></div>
                </el-card>
                <el-card>
                    <div ref="videoEchart" style="height: 240px;"></div>
                </el-card>
            </div>
        </el-col>
    </el-row>
</template>

<script setup>
import {ref, getCurrentInstance, onMounted, reactive} from 'vue'
import * as echarts from 'echarts'

const {proxy} = getCurrentInstance()
const getImageUrl = (user)=> {
    return new URL(`../assets/images/${user}.png`,import.meta.url).href
}
const tableData = ref([])
const countData = ref([])
const chartData = ref([])
//observer 接收观察器实例对象
const observer = ref(null)

const tableLabel = ref({
    name: "品牌",
    todayBuy: "今日购买",
    monthBuy: "本月购买",
    totalBuy: "总购买",
})
//这个是折线图和柱状图 两个图表共用的公共配置
const xOptions = reactive({
    // 图例文字颜色
    textStyle: {
        color: "#333",
    },
    legend: {},
    grid: {
        left: "20%",
    },
    // 提示框
    tooltip: {
        trigger: "axis",
    },
    xAxis: {
        type: "category", // 类目轴
        data: [],
        axisLine: {
            lineStyle: {
                color: "#17b3a3",
            },
        },
        axisLabel: {
            interval: 0,
            color: "#333",
        },
    },
    yAxis: [
        {
            type: "value",
            axisLine: {
                lineStyle: {
                    color: "#17b3a3",
                },
            },
        },
    ],
    color: ["#2ec7c9", "#b6a2de", "#5ab1ef", "#ffb980", "#d87a80", "#8d98b3"],
    series: [],
})

const pieOptions = reactive({
    tooltip: {
        trigger: "item",
    },
    legend: {},
    color: [
        "#0f78f4",
        "#dd536b",
        "#9462e5",
        "#a6a6a6",
        "#e1bb22",
        "#39c362",
        "#3ed1cf",
    ],
    series: []
})

const getTableData = async ()=> {
    const data = await proxy.$api.getTableData()
    console.log('getTableData=',data)
    tableData.value = data.tableData
}
const getCountData = async ()=> {
    const data = await proxy.$api.getCountData()
    console.log('getCountData=',data)
    countData.value = data
}
const getChartData = async ()=> {
    const {orderData, userData, videoData} = await proxy.$api.getChartData()
    console.log('getChartData=',orderData)
    // 对折线图 X轴 和 series 进行赋值
    xOptions.xAxis.data = orderData.date
    xOptions.series = Object.keys(orderData.data[0]).map(val => {
        return {
            name: val,
            data: orderData.data.map(item => item[val]),
            type: 'line'
        }
    })
    const oneEchart = echarts.init(proxy.$refs['echart'])
    oneEchart.setOption(xOptions)

    // 对柱状图进行赋值渲染
    xOptions.xAxis.data = userData.map(item => item.date)
    xOptions.series = [
        {
            name: '新增用户',
            data: userData.map(item => item.new),
            type: 'bar'
        },
        {
            name: '活跃用户',
            data: userData.map(item => item.active),
            type: 'bar'
        }
    ]
    const twoEchart = echarts.init(proxy.$refs['userEchart'])
    twoEchart.setOption(xOptions)

    // 对饼图进行赋值渲染
    pieOptions.series = [
        {
            data: videoData,
            type: 'pie'
        }
    ]
    const threeEchart = echarts.init(proxy.$refs['videoEchart'])
    threeEchart.setOption(pieOptions)

    //ResizeObserver 如果监视的容器大小变化，如果改变会执行传递的回调
    observer.value = new ResizeObserver(entries => {
        oneEchart.resize()
        twoEchart.resize()
        threeEchart.resize()
    })
    //如果这个容器存在
    if (proxy.$refs["echart"]) {
        //则调用监视器的observe方法，监视这个容器的大小
        observer.value.observe(proxy.$refs["echart"]);
    }
}
onMounted(() => {
    getTableData()
    getCountData()
    getChartData()
})
</script>

<style lang="less" scoped>
    .home {
        height: 100%;
        overflow: hidden;
        .user {
            display: flex;
            align-items: center;
            border-bottom: 1px solid #ccc;
            margin-bottom: 20px;
            img {
                width: 150px;
                height: 150px;
                border-radius: 50%;
                margin-right: 40px;
            }
            .user-info-admin {
                font-size: 35px;
            }
            .user-info {
                p {
                    line-height: 40px;
                }
                .user-info-p {
                    color: #999;
                }
            }
        }
        .login-info {
            p {
                line-height: 30px;
                font-size: 14px;
                color: #999;
                span {
                    color: #666;
                    margin-left: 60px;
                }
            }
        }
        .user-table {
            margin-top: 20px;
        }
        .num {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            .el-card {
                width: 32%;
                margin-bottom: 20px;
            }
            .icons {
                width: 80px;
                height: 80px;
                font-size: 30px;
                text-align: center;
                line-height: 80px;
                color: #fff;
            }
            .detail {
                margin-left: 15px;
                display: flex;
                flex-direction: column;
                justify-content: center;
                .num {
                    font-size: 30px;
                    margin-bottom: 10px;
                }
                .txt {
                    font-size: 15px;
                    text-align: center;
                    color: #999;
                }
            }
        }
        .graph {
            margin-top: 20px;
            display: flex;
            justify-content: space-between;
            .el-card {
                width: 48%;
                height: 260px;
            }
        }
    }
</style>